 Mexico: Puerto Vallarta - Singles - Qualification |
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| Final | Nanda G. | Thirouin J. | 2:0 (7:64, 6:3) | details | 22.11.2021 |
| Semi-finals | Pannu K. | Thirouin J. | 0:2 (4:6, 2:6) | details | 21.11.2021 |
 USA: M15 East Lansing, MI - Singles - Main |
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| 1/16-finals | Kuhar M. | Thirouin J. | 2:1 (6:4, 4:6, 6:1) | details | 17.11.2021 |
 Peru: Lima 2 - Singles - Main |
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| 1/16-finals | Melzer G. | Thirouin J. | 2:0 (6:3, 6:1) | details | 27.10.2021 |
| Peru: Lima 2 - Singles - Qualification |
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| Final | Casanova H. | Thirouin J. | 2:0 (6:3, 6:2) | details | 25.10.2021 |
| Semi-finals | Romboli F. | Thirouin J. | 1:2 (3:6, 6:3, 4:6) | details | 24.10.2021 |
 Colombia: Bogota - Singles - Qualification |
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| Semi-finals | Pospisil J. | Thirouin J. | 2:1 (6:4, 64:7, 6:2) | details | 17.10.2021 |
| Peru: M25 Lima 2 - Singles - Main |
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| 1/8-finals | Esteve L. E. | Thirouin J. | 2:0 (6:4, 6:3) | details | 14.10.2021 |
| 1/16-finals | Nusdeo J. M. | Thirouin J. | 0:2 (1:6, 1:6) | details | 13.10.2021 |
| Peru: M25 Lima - Singles - Main |
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| 1/8-finals | Martin Tiffon P. | Thirouin J. | 2:0 (6:2, 6:1) | details | 07.10.2021 |
| 1/16-finals | Valsecchi P. | Thirouin J. | 1:2 (4:6, 6:3, 4:6) | details | 07.10.2021 |
| Peru: Lima - Singles - Qualification |
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| Final | Gomez-Herrera C. | Thirouin J. | 2:1 (6:1, 3:6, 6:1) | details | 27.09.2021 |
| Semi-finals | Thirouin J. | Villanueva G. | 2:1 (6:3, 1:6, 6:1) | details | 26.09.2021 |
| USA: Cary 2 - Singles - Qualification |
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| Semi-finals | Thirouin J. | Sarkissian A. | 1:1 RET. (7:63, 64:7, 0:5) | details | 12.09.2021 |
 Montenegro: M15 Ulcinj 2 - Singles - Main |
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| 1/16-finals | Sumizawa D. | Thirouin J. | 1:0 RET. (6:3, 0:0) | details | 08.09.2021 |
| Montenegro: M15 Ulcinj - Singles - Main |
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| 1/8-finals | Cungu R. | Thirouin J. | 1:1 RET. (66:7, 6:4, 3:0) | details | 02.09.2021 |
| 1/16-finals | Liutarevich I. | Thirouin J. | 0:2 (2:6, 2:6) | details | 31.08.2021 |
 Italy: M25+H Lesa - Singles - Main |
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| Quarter-finals | Thirouin J. | Martineau M. | 0:2 (1:6, 1:6) | details | 27.08.2021 |
| 1/8-finals | Juarez F. | Thirouin J. | 1:2 (4:6, 6:4, 64:7) | details | 26.08.2021 |
| 1/16-finals | Thirouin J. | Postay A. | 2:0 (6:2, 6:1) | details | 25.08.2021 |
| 1/16-finals | Thirouin J. | Kestelboim M. | CAN. | details | 25.08.2021 |
| Italy: M15 Pescara - Singles - Main |
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| Quarter-finals | Thirouin J. | Reymond A. | 0:2 (2:6, 1:6) | details | 20.08.2021 |
| 1/8-finals | Thirouin J. | Del Federico A. | 2:0 (7:5, 6:2) | details | 19.08.2021 |
| 1/16-finals | Galoppini D. | Thirouin J. | 1:2 (5:7, 6:1, 3:6) | details | 17.08.2021 |
 Romania: M25 Pitesti - Singles - Main |
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| 1/16-finals | Echargui M. | Thirouin J. | 2:0 (6:3, 6:2) | details | 03.08.2021 |
 Portugal: M15 Castelo Branco - Singles - Main |
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| 1/8-finals | Thirouin J. | Shimabukuro S. | 0:2 (0:6, 1:6) | details | 29.07.2021 |
| 1/16-finals | Glinka D. | Thirouin J. | 1:2 (5:7, 7:5, 4:6) | details | 28.07.2021 |
| Portugal: M25 Idanha-a-Nova 2 - Singles - Main |
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| 1/16-finals | Thirouin J. | Little D. | 0:2 (3:6, 4:6) | details | 21.07.2021 |
 Bosnia and Herzegovina: M15 Doboj - Singles - Main |
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| Quarter-finals | Thirouin J. | Obradovic D. | 0:2 (69:7, 4:6) | details | 16.07.2021 |
| 1/8-finals | Thirouin J. | Pavlovic L. | 2:0 (6:3, 7:66) | details | 15.07.2021 |
| 1/16-finals | Thirouin J. | Muminovic D. | 2:0 (6:4, 6:2) | details | 14.07.2021 |
 France: M25 Grasse - Singles - Main |
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| 1/16-finals | Lopez San Martin A. | Thirouin J. | 2:0 (6:1, 6:1) | details | 16.06.2021 |
 North Macedonia: M15 Skopje 2 - Singles - Main |
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| 1/16-finals | Thirouin J. | Jirousek T. | 0:2 (1:6, 3:6) | details | 10.06.2021 |